CVE-2025-66203: StreamVault is a video download integration solution

Q: How do I fix CVE-2025-66203?

streamvault: upgrade to 251126. Exact commands for each OS are on this page.

Q: Is CVE-2025-66203 being exploited?

CVE-2025-66203 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-66203 affect?

CVE-2025-66203 affects streamvault. Severity is critical (CVSS 9.9). StreamVault is a video download integration solution. Prior to version 251126, a Remote Code Execution (RCE) vulnerability exists in the stream-vault application (SpiritApplication). The application allows administrators to configure yt-dlp

Q: How urgent is CVE-2025-66203?

Priority 54/100. Critical severity; Public exploit reference

This month

CRITICAL 9.9UPGRADE

CVE-2025-66203 is a critical-severity flaw (CVSS 9.9) affecting streamvault. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

StreamVault is a video download integration solution. Prior to version 251126, a Remote Code Execution (RCE) vulnerability exists in the stream-vault application (SpiritApplication). The application allows administrators to configure yt-dlp arguments via the /admin/api/saveConfig endpoint without sufficient validation. These arguments are stored globally and subsequently used in YtDlpUtil.java when constructing the command line to execute yt-dlp.

Why this priority

Critical severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	9.9 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-78
Published	2025-12-27
Last modified	2026-10-07

Publisher (CNA): GitHub, Inc. · Vendor: lemon8866

Last updated 2026-10-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-27 00:15 UTCPublished CVE record published
2026-10-07 13:10 UTCUpdated Record last modified

lemon8866 streamvault UPGRADE

Affected: < 251126

Fixed in: 251126

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy streamvault || rpm -q streamvault || streamvault --version

2. UPGRADE to 251126 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade streamvault

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade streamvault

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-66203?

streamvault: upgrade to 251126. Exact commands for each OS are on this page.

Is CVE-2025-66203 being exploited?

CVE-2025-66203 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-66203 affect?

CVE-2025-66203 affects streamvault. Severity is critical (CVSS 9.9). StreamVault is a video download integration solution. Prior to version 251126, a Remote Code Execution (RCE) vulnerability exists in the stream-vault application (SpiritApplication). The application allows administrators to configure yt-dlp

How urgent is CVE-2025-66203?

Priority 54/100. Critical severity; Public exploit reference

Software pages

Java vulnerabilities · HashiCorp Vault vulnerabilities

References

← Back to latest CVEs